Curviloft by spline

curviloft plugin
i have a arc
a line below closing the ends
face i erased

curviloft by spline error

conours cannot be generated

I’ll may not be the best to answer, but others will be able to help you if you can supply more details!
Could you please explain it a little deeper and more clear!
What do you want to achieve?
What is the error message?
Screenshot? Sharing your file?

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This is not much to go on… SketchUp is a visual program… please share screen shots or models to help us help you.

If I understand what you’ve done all the endpoints in your shape are complaner . Curviloft does nothing because there are no contours for it to base it’s calculations? Like desmo and Aaron said show us just what your trying to do.